Introducing Snowl - Messaging in the Browser

Could the web browser help you follow and participate in online discussions?

Snowl from Mozilla Labs is an experiment to answer that question. It’s a prototype Firefox extension that integrates messaging into the browser based on a few key ideas

With Snowl, messages are alike, whether they come from traditional email servers, RSS/Atom
feeds, web discussion forums, social networks, or other sources. A search-based interface for message retrieval is more powerful and
easier to use than one that makes you organize your messages first to
find them later. Snowl has browser functionality for navigating web content, like tabs, bookmarks, and history, also works well for navigating messages.

The Initial Prototype

The initial prototype supports two sources of messages:
RSS/Atom feeds and Twitter. And it exposes two interfaces for reading
them. First, a traditional three-pane “list” view, targeted to active
reading of important messages: